As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG PRV EICAS MSG ON DURING ENG START. MSG COMES ON AT 8-10% N2. CYCLED SWITCH, AND AIR SUPPLY CB S11 ON P11, RESTART ENGINE SAME FAULT. REPLACED NR 1 ENG PRV PER AMM DUE TO FOUND PRV FAIL IN MID POSITION - UNABLE TO MOVE MANUALLY WITH WRENCH. CHECKS GOOD ON ENGINE IDLE RUN.